Improvement in car-wheels



UNITED STATES APATEN'I OFFICE.

'JOHN TIRANOEE, NICHOLAS TIEANOEE, AND ALEXIS KOUSAKOFF, sT. PETERSBURG, ziwssrA.l

IMPROVEMENT IN CAR-WHEsELS.

Specification forming part of Letters Patent No. 142,968, dated September 16, 1873; application filed April 25, 1873.

To all whom it may concern: y

Be it known that we, J oHN TIRANOFF, NIGH- OLAS TIRANOFF, and ALEXIS KOUSAKOFE, all

of St. Petersburg, in the Empire of Russia, have. invented certain Improvements in Rail- Way Running-Stock, of 'which the following is a specification:

It is the object of this invention to prevent the twisting or torsional strain upon the axles of railway-car Wheels caused by the unequalmotion of the inner` and outer wheels in pass-l ing around curves; and it consists in double in clines on the treading-face ci' the Wheels, one incline being formed to run upon the ordinary traveling rails, and the other of smaller diameter for running upon an additional rail laid outside the inner rails of curves, so that the smaller or outer incline of the Wheels on the inner part of a curve bears upon the addition al rail, which is arranged at curvesabove the level of the ordinaryrail, causing each wheel nary traveling, and the other for taking upon v a supplemental or additional rail, F, as shown,

which is laid outside the inner rail of curvesj so that the wheels on the inner part of a curve bear upon the additional rail which is above the level of the ordinary rail vat the curve. Thus each wheel accommodates itself to the track and the Speed at which the train may be passing over it without putt-ing unnecessary strain upon the clip, if the axle be a divided one, or upon the axle should it be a coniplete one Without clips, like an ordinary axle. The height of the additional rail F, and its distance from the usual rail are first adjusted or laid according tothe radius ofthe curve.

Thus curves of any radiuses can be traveledY over at very high Speed with perfect safety,-

the ordinary guard-rails which limit the speed at curves being dispensedwith. The anges on the Wheels may also be much deeper than is usual. The ends ofthe rails are supported upon an ironplate, G, recessed into a' longitudinal sleeper, as shown in Fig. 4.

Havingthus fully described our invention, We claim- A car-wheel thev tread of which is formed with double-inclined surfaces a a', in combination with the auxiliary rail F arranged on the inner side of curves andoutside of the track, elevated to receive the smaller portion of the tread, substantially as described.

. JOHN TIRANOFF.

NICHOLAS TIRANOFF. ALEXIS KOUSAKOFF.

Witnesses:

NICOLAS GLADILIN, Moscow. ALEXIS OEMENENKO, Moscow. 

